The dirname attribute of <textarea> and <input> HTML elements includes the field's writing direction as form data on submission.

Learning resources on MDN

• Dirname, in <input>: The HTML Input element

Browser support

• Chrome 17 Released on 2012-02-08
• Chrome Android 18 Released on 2012-06-27
• Edge 79 Released on 2020-01-15
• Firefox 116 Released on 2023-08-01
• Firefox for Android 116 Released on 2023-08-01
• Safari 6 Released on 2012-07-25
• Safari on iOS 6 Released on 2012-09-10

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